Pirate Mfg Hot Rod Chrome Carburetor Return Spring Bracket & Dual Return Spring Kit Chrome Carburetor Return Spring & Bracket Kit Features A Chrome 3-1/4 Inch tall Bracket & Dual 4 Inch Return Spring This Kit fits most 5-1/8 Carburetor necks like Edelbrock or Holley The Chrome bracket is pre-drilled with a 3/8 mounting hole Perfect for your Rat Rod, Hot Rod, Muscle Car, or Custom Car project.